Turn-round for paper-drying machines



- ,-?Kmi J. WALDPJON.

Turn-Rounds for Paper Drying Machines.

I No, 234,359. f I F Patented ow. 9, we

UNITED STATES JOHN \VA'LDRON, OF NEW BRUNSVVIOK, NEW JERSEY.

TURN-ROUND FOR PAPER-DRYING MACHINES.

SPECIFICATION forming part of Letters Patent No. 234,359, dated November 9, 1880. Application filed October 1:2, 1880. (No model.)

To all whom it may concern:

Brunswick, New Jersey, have invented an linprovement in Turn-Rounds for Paper-Drying Machines, of which the following is a specification.

My invention relates to what are known amongwall-papermanufacturers ashanging- I up and carrying-0H machines, which consist or double 1i ncs or tram ways. so to speak, of endless belts, ropes, or chains traveling over grooved pulleys depending in suitable hangers from the ceiling of a drying-room, and so arranged as to receive festoons of freshly-grounded,

- sized, or printed paper or other fabric hung upon laths or slats, which latter are fed under the paper as it emerges from the apparatus in which it has been treated, and are then carried to and upon the belts, so as to be supported between the same and supporting and carrying the paper to be carried thereby.

Drying-rooms being of'restricted length it has been necessary to provide means for turning the slats at the ends of the room, the devices employed being turn-rounds. The short path or inside curve of the turn-round is a disk revolving horizontally between the vertical pulleys which carry the inside belts of the straight portions of the lines.

Heretofore the long path or outside curve of the turn-round has consisted of a rope traveling against horizontal grooved pulleys arranged in a semicircular frame-work, and at the ends where juncture was effected with the outside belts of the straight portions of the lines travelin g downward over vertical pulleys, and thence over idlers to a Windlass or drum, around which it has been wound and to which the motion necessary to drive it has been im parted. The friction incident to the winding on the drum and to the changes of direction of the rope has militated against the device, increasingits cost in requiring increased power to drive it.

My invention relates specifically to the long path or outside curve of the turn-round; and it consists in an endless belt, or chain, or rope traveling against suitably-arranged pulleys in the proper arc, and at the ends where juncture is effected with the outside belts of the straight lines traveling outwardly around horizontal J pulleys, and thence against suitable tighten- -c it known that I, JOILN \VALDRON, of New ing-rolls to a horizontal driving-pulley in such manner that the belt, chain, or rope lies in the same horizontal plane, makes no angular turns, and is driven with greatly-reduced friction by a simple drivingilley without recourse to winding upon a windlass.

In the accompanying drawings, Figure 1 represents, in top-plan view, a turn-round enihodying my improvements operating with a belt and with a few laths in place. Fig. 2 represents, in end elevation, and Fig. 3 in side elevation, the apparatus of Fig. 1. partial top-plan view of a turn-round embodying my improvements and operating with a chain. Fig. 5 is a side elevation of a sprocketwheel and chain, and Fig 6 a view, in perspective, of a slat or lath.

Similar letters of reference indicate corresponding parts. y

A are hangers, in which are supported the vertical pulleys B B and G U, which carry the ingoing and outgoing lines of belts constituting the straight portions of the apparatus.

D is the horizontal disk, which constitutes the inside curve or short path ofthe turnround. It is revolved at the proper rate and in the required direction by a belt, E, from a pulley on the shaft of the driving-pulley F of the turn-round, which drives a pulley, R, on its shaft.

G is a semicircular frame-work suspended upon hangers H, and in'Figs. 1, 2, and 3, provided with asemicircular series of carryingpulleys, I, so disposed as to define the course of that portion of the belt which forms the long path or outside curve of the turn-round.

J J are the end pulleys, around which the belt turns back to pursue its backward course to the driving-pulley F. They are journaled in any suitable hangers or bearings K.

L M N are tightening-rolls, against which the belt in its backward course bears, and by which it is kept taut. They are supported by or from the frame-work G, and, if desired, are adjustable to take up slack.

The driving-pulley F is supported in the frame-work 0, and is actuated to the desired rotation by a bevel-gearing, P, or the like. Its shaft carries a pulley, Q, by which is driven the belt E, which revolves the pulley Fig. 4 is a I R of the disk D, constituting the short path of the turn-round.

The proportions of the pulleys Q and It are relatively such that the disk D is revolved at the same rate of speed with the carrying-belt S of the turn-round. This belt S (shown in full lines in Fig. 1 and in dotted lines, for greater clearness of illustration, in Figs. 2and 3) is a wide leather, india-rubber, ,or other stifi'- material belt. It is wider than any of the pulleys against or by means of which it travels, as shown in Figs. 2 and 3, so that, standing vertically, it projects above the upper surface of all its pulleys and receives upon its edge the slats to be turned round. A rate of motion is imparted to it which corresponds with that imparted to the straight lines of belts, so that the slats are turned round at the same rate as that at which they travel the straight portions. V are the laths.

In Figs. 4 and 5 is illustrated a construction of apparatus identical with that abovedescribed, except that a sprocket-chain, T, is substitutedfor the belt S, and sprocket-wheels W for the grooved pulleys.

In Fig. 5 is indicated, indotted lines, the position assumed bythe chain, which is such that, as in the ease of the belt, its upper edge is above the upper surface of the sprocket-wheels in order to receive upon its edge the laths to as to subserve the purpose, broadly, of changing the direction of the laths.

In any arran gemen t, however, it is material to my invention that the belt or longer conveying medium of the turn-round should travel throughout its course in the same horizontal plane, and that its upper edge should project above the pulleys which define its carryingtrack. e

Having thus described myinvention, I claim and desire to secure by Letters Patent of the United States 1. A belt, chain, rope, or other carrying medium' forming the long path or outside curve of a turn-round, and traveling throughout its course in a horizontal plane.

2. A belt, chain, rope, or other carrying medium forming the lon'g path or outside curve ofa turn-round, traveling throughout its course in a horizontal plane and having its upper or carrying edge above the surfaces of the pulleys, rolls, or wheels upon which it is carried.

3. A belt, chain, rope, or other carrying medium forming the long path or outside curve of a turn-round, and traveling throughout its .course in a horizontal plane, in combination with a disk forming the short path or inside curve and revolving at a proportionate speed in the same horizontal plane. a

4. As a means of driving, supporting, and actuating a belt, chain, rope, or other carrying medium forming the long path or outside curve of a turn-round, a series of pulleys arranged in the same'horizontal plane in a suitable frame-Work. g

In testimony whereof I have hereunto signed my name this 11th day of October, A. D. 1:580.

J N O. WALDRON. In presence of J BONSALL TAYLOR, JOHN J OLLEY, Jr. 

